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deficient

 
 
/dɪˈfɪʃənt/ adjective

Definition

NOT HAVING ENOUGH not having enough of something: If you have poor night vision you may be deficient in vitamin A.
NOT GOOD ENOUGH not good enough: His theory is deficient in several respects.
(Definition of deficient adjective from the Cambridge Learner's Dictionary © Cambridge University Press)

“deficient” in other dictionaries

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